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# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
from __future__ import annotations

from datetime import datetime
from unittest import mock
from unittest.mock import MagicMock, patch

import pytest
from dateutil.tz import tzlocal

from airflow.exceptions import AirflowException
from airflow.providers.amazon.aws.sensors.emr import EmrStepSensor

DESCRIBE_JOB_STEP_RUNNING_RETURN = {
    "ResponseMetadata": {"HTTPStatusCode": 200, "RequestId": "8dee8db2-3719-11e6-9e20-35b2f861a2a6"},
    "Step": {
        "ActionOnFailure": "CONTINUE",
        "Config": {
            "Args": ["/usr/lib/spark/bin/run-example", "SparkPi", "10"],
            "Jar": "command-runner.jar",
            "Properties": {},
        },
        "Id": "s-VK57YR1Z9Z5N",
        "Name": "calculate_pi",
        "Status": {
            "State": "RUNNING",
            "StateChangeReason": {},
            "Timeline": {
                "CreationDateTime": datetime(2016, 6, 20, 19, 0, 18, tzinfo=tzlocal()),
                "StartDateTime": datetime(2016, 6, 20, 19, 2, 34, tzinfo=tzlocal()),
            },
        },
    },
}

DESCRIBE_JOB_STEP_CANCELLED_RETURN = {
    "ResponseMetadata": {"HTTPStatusCode": 200, "RequestId": "8dee8db2-3719-11e6-9e20-35b2f861a2a6"},
    "Step": {
        "ActionOnFailure": "CONTINUE",
        "Config": {
            "Args": ["/usr/lib/spark/bin/run-example", "SparkPi", "10"],
            "Jar": "command-runner.jar",
            "Properties": {},
        },
        "Id": "s-VK57YR1Z9Z5N",
        "Name": "calculate_pi",
        "Status": {
            "State": "CANCELLED",
            "StateChangeReason": {},
            "Timeline": {
                "CreationDateTime": datetime(2016, 6, 20, 19, 0, 18, tzinfo=tzlocal()),
                "StartDateTime": datetime(2016, 6, 20, 19, 2, 34, tzinfo=tzlocal()),
            },
        },
    },
}

DESCRIBE_JOB_STEP_FAILED_RETURN = {
    "ResponseMetadata": {"HTTPStatusCode": 200, "RequestId": "8dee8db2-3719-11e6-9e20-35b2f861a2a6"},
    "Step": {
        "ActionOnFailure": "CONTINUE",
        "Config": {
            "Args": ["/usr/lib/spark/bin/run-example", "SparkPi", "10"],
            "Jar": "command-runner.jar",
            "Properties": {},
        },
        "Id": "s-VK57YR1Z9Z5N",
        "Name": "calculate_pi",
        "Status": {
            "State": "FAILED",
            "StateChangeReason": {},
            "FailureDetails": {
                "LogFile": "s3://fake-log-files/emr-logs/j-8989898989/steps/s-VK57YR1Z9Z5N",
                "Reason": "Unknown Error.",
            },
            "Timeline": {
                "CreationDateTime": datetime(2016, 6, 20, 19, 0, 18, tzinfo=tzlocal()),
                "StartDateTime": datetime(2016, 6, 20, 19, 2, 34, tzinfo=tzlocal()),
            },
        },
    },
}

DESCRIBE_JOB_STEP_INTERRUPTED_RETURN = {
    "ResponseMetadata": {"HTTPStatusCode": 200, "RequestId": "8dee8db2-3719-11e6-9e20-35b2f861a2a6"},
    "Step": {
        "ActionOnFailure": "CONTINUE",
        "Config": {
            "Args": ["/usr/lib/spark/bin/run-example", "SparkPi", "10"],
            "Jar": "command-runner.jar",
            "Properties": {},
        },
        "Id": "s-VK57YR1Z9Z5N",
        "Name": "calculate_pi",
        "Status": {
            "State": "INTERRUPTED",
            "StateChangeReason": {},
            "Timeline": {
                "CreationDateTime": datetime(2016, 6, 20, 19, 0, 18, tzinfo=tzlocal()),
                "StartDateTime": datetime(2016, 6, 20, 19, 2, 34, tzinfo=tzlocal()),
            },
        },
    },
}

DESCRIBE_JOB_STEP_COMPLETED_RETURN = {
    "ResponseMetadata": {"HTTPStatusCode": 200, "RequestId": "8dee8db2-3719-11e6-9e20-35b2f861a2a6"},
    "Step": {
        "ActionOnFailure": "CONTINUE",
        "Config": {
            "Args": ["/usr/lib/spark/bin/run-example", "SparkPi", "10"],
            "Jar": "command-runner.jar",
            "Properties": {},
        },
        "Id": "s-VK57YR1Z9Z5N",
        "Name": "calculate_pi",
        "Status": {
            "State": "COMPLETED",
            "StateChangeReason": {},
            "Timeline": {
                "CreationDateTime": datetime(2016, 6, 20, 19, 0, 18, tzinfo=tzlocal()),
                "StartDateTime": datetime(2016, 6, 20, 19, 2, 34, tzinfo=tzlocal()),
            },
        },
    },
}


class TestEmrStepSensor:
    def setup_method(self):
        self.emr_client_mock = MagicMock()
        self.sensor = EmrStepSensor(
            task_id="test_task",
            poke_interval=0,
            job_flow_id="j-8989898989",
            step_id="s-VK57YR1Z9Z5N",
            aws_conn_id="aws_default",
        )

        mock_emr_session = MagicMock()
        mock_emr_session.client.return_value = self.emr_client_mock

        # Mock out the emr_client creator
        self.boto3_session_mock = MagicMock(return_value=mock_emr_session)

    def test_step_completed(self):
        self.emr_client_mock.describe_step.side_effect = [
            DESCRIBE_JOB_STEP_RUNNING_RETURN,
            DESCRIBE_JOB_STEP_COMPLETED_RETURN,
        ]

        with patch("boto3.session.Session", self.boto3_session_mock):
            self.sensor.execute(None)

            assert self.emr_client_mock.describe_step.call_count == 2
            calls = [
                mock.call(ClusterId="j-8989898989", StepId="s-VK57YR1Z9Z5N"),
                mock.call(ClusterId="j-8989898989", StepId="s-VK57YR1Z9Z5N"),
            ]
            self.emr_client_mock.describe_step.assert_has_calls(calls)

    def test_step_cancelled(self):
        self.emr_client_mock.describe_step.side_effect = [
            DESCRIBE_JOB_STEP_RUNNING_RETURN,
            DESCRIBE_JOB_STEP_CANCELLED_RETURN,
        ]

        with patch("boto3.session.Session", self.boto3_session_mock):
            with pytest.raises(AirflowException):
                self.sensor.execute(None)

    def test_step_failed(self):
        self.emr_client_mock.describe_step.side_effect = [
            DESCRIBE_JOB_STEP_RUNNING_RETURN,
            DESCRIBE_JOB_STEP_FAILED_RETURN,
        ]

        with patch("boto3.session.Session", self.boto3_session_mock):
            with pytest.raises(AirflowException):
                self.sensor.execute(None)

    def test_step_interrupted(self):
        self.emr_client_mock.describe_step.side_effect = [
            DESCRIBE_JOB_STEP_RUNNING_RETURN,
            DESCRIBE_JOB_STEP_INTERRUPTED_RETURN,
        ]

        with patch("boto3.session.Session", self.boto3_session_mock):
            with pytest.raises(AirflowException):
                self.sensor.execute(None)
